That has caused cancellation mayhem for Kamome's staff as more than 20,000 of the company's Chinese package tour customers pulled the plug on all trips to Japan up to February 10.
The city is a popular destination for Chinese tourists during the Lunar New Year holiday.
In another area of Tokyo, there are concerns for those in Wuhan who have been directly affected by the coronavirus.
"We just hope that this situation gets resolved quickly," says a spokesperson from Hankyo Travel International, a major Tokyo travel agency.
While it's often news of diplomatic spats between China and Japan that make headlines, in recent years the growing number of Chinese visiting Japan for holidays has shifted attitudes, tastes and foreign policy.